MSM63P238

Features:

*Rich instruction set 439 instructions Transfer, rotate, increment/decrement, arithmetic operations, comparison,
  logic operations, mask operations, bit operations, ROM table reference, external memory transfer, stack
  operations, flag operations, branch, conditional branch, call/return, control.
*Rich selection of addressing modes Indirect addressing of four data memory types, with current bank register,
  extra bank register, HL register and XY register. Data memory bank internal direct addressing mode.
*Processing speed Two clocks per machine cycle, with most instructions executed in one machine cycle. Minimum
  instruction execution time : 61 ms (@ 32.768 kHz system clock) 1 ms (@ 2 MHz system clock)
*Clock generation circuit Low-speed clock : 32.768 kHz/38.4 kHz/76.8 kHz crystal oscillator High-speed clock :
  2 MHz (Max.) RC or ceramic oscillator select
*Program memory (PROM) space* 16K words Basic instruction length is 16 bits/1 word
*Data memory space 1K nibbles   


Specifications

Parameter	Symbol	Condition	Rating	Unit
Power Supply Voltage 1	VDD	Backup used, Ta = 25	0.3 to +3.0	V
		Backup not used, Ta = 25	0.3 to +6.0
Power Supply Voltage 2	VDDI	Ta = 25	0.3 to +6.0	V
Power Supply Voltage 3	VDDR	Ta = 25	0.3 to +6.0	V
Power Supply Voltage 4	VDDH	Ta = 25	0.3 to +6.0	V
Power Supply Voltage 5	VDDL	Ta = 25	0.3 to +6.0	V
Input Voltage 1	VIN1	VDD Input, Ta = 25	0.3 to VDD + 0.3	V
Input Voltage 2	VIN2	VDDI Input, Ta = 25	0.3 to VDDI + 0.3	V
Input Voltage 3	VIN3	VDDR Input, Ta = 25	0.3 to VDDR + 0.3	V
Out put Voltage 1	VOUT1	VDD output, Ta = 25	0.3 to VDD + 0.3	V
Output Voltage 2	VOUT2	VDDI output, Ta = 25	0.3 to VDDI + 0.3	V
Output Voltage 3	VOUT3	VDDR output, Ta = 25	0.3 to VDDI + 0.3	V
Output Voltage 4	VOUT4	VDDH output, Ta = 25	0.3 to VDDH + 0.3	V
Storage Temperature	TSTG	-

Description

The MSM63P238 is a CMOS 4-bit microcontroller with a built-in POCSAG (Post Office Code Standardization Advisory Group) decoder, which employs Oki's original nX-4/250 CPU core. The MSM63P238 is a one-time-programmable ROM-version product having one-time PROM (OTP) as internal program memory.

The specifications of the MSM63P238 are equal to those of the MSM63238 except for electrical characteristics, packaging (only 80-pin flat package is available for the MSM63P238), and some functions.